AVR-based single-rocket relay launcher (Colours of buttons???)

[DexterLB]

I'm making a LPR single-rocket AVR-based launcher. The two parts will be connected with a regular UTP cable. The goal is to eliminate the high current in the long wires, so that I can put a longer cable. I have all parts & materials.

The big problem is: What colour ABORT and ARM buttons? The GO button is red. Please vote about the other two :shock:

 

[SCE to AUX]

I typically use yellow for Arm, red for Abort, and green for Launch.

Probably just from years of building industrial control panels where Red=Stop and Green=Start. Yellow would typically be used for an "intermediate" function like "enable", "jog", etc.